Fuel Prices in Wales
Live petrol and diesel across Cardiff, Swansea, Newport, Wrexham and the wider region.
Fuel prices across Wales are not uniform, and treating the region as a single number hides the thing that actually saves you money — the 10p per litre gap that can exist between two forecourts within the same postcode area.
Welsh pump prices split sharply between the M4 corridor in the south, where supermarket competition keeps prices near the UK average, and mid and north Wales, where forecourts are sparse and the nearest cheap station may be a genuine drive away.
This hub covers the CF, SA, NP, LL, SY and LD postcode areas. Pick your nearest city below for a ranked list of every local forecourt, or search any postcode in the region to see live petrol and diesel prices in pence per litre, sourced from the UK Government's CMA Pump Watch open-data scheme and stamped with the time each price was last confirmed.
How It Works
- Step 1: Pick your area — Choose a city hub — Cardiff, Swansea, Newport — or type any local postcode.
- Step 2: Compare the region — Every reporting forecourt ranked by pence per litre, cheapest first.
- Step 3: Fill up locally — Directions hand off to your usual maps app in one tap.
Why Drivers Use fuelfinder.ai
- Wales coverage — Forecourts across the CF, SA, NP, LL, SY and LD postcode areas.
- Official CMA data — Retailer-declared prices from the UK Government scheme, refreshed twice daily.
- Free and open — No account, no app, no paywall on prices.
- Fast on mobile — Answers in seconds, designed for checking before you drive.
Frequently Asked Questions
Where is fuel cheapest in Wales?
Supermarket forecourts lead on price across most of Wales, particularly where two sit close together. The exact cheapest station changes daily, so use the live search rather than assuming a single winner.
Why do Wales fuel prices vary so much?
Local competition dominates. Welsh pump prices split sharply between the M4 corridor in the south, where supermarket competition keeps prices near the UK average, and mid and north Wales, where forecourts are sparse and the nearest cheap station may be a genuine drive away.
Which postcode areas does this page cover?
The CF, SA, NP, LL, SY and LD areas, plus the surrounding towns that report to the CMA scheme. Individual city pages give a tighter local ranking.
How current are these Wales prices?
Data is ingested from the Government feed twice a day and each station shows its own last-updated time. Anything older than seven days is excluded from rankings.
Is diesel more expensive than petrol across Wales?
Usually, by roughly 4-8p per litre, in line with the UK-wide gap. The spread varies by station and brand, so both grades are shown side by side on every city page.